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Digital Video and HD
book

Digital Video and HD

by Charles Poynton
January 2003
Intermediate to advanced content levelIntermediate to advanced
736 pages
30h 54m
English
Morgan Kaufmann
Content preview from Digital Video and HD
The Rec. 601 luma coefficients were
computed using the technique that
I explained in
Luminance coeffi-
cients,
on page 250, using the NTSC
primaries and white point of
Table 22.2, on page 238.
from those of Rec. 709. For tristimulus values greater
than a few percent, use these equations"
R'240 = 1.1115 R 045 - O. 1115
G'240 = 1.1115G ~ - 0.1115 Eq 24.4
B'240 = 1.1115B ~ -0.1115
The sRGB specification for desktop computing uses
numerical values slightly different again (page 267). For
tristimulus values greater than a few percent:
1
RsRGB =
1.055 R
2.4 _
0.055
1
G'sRGB = 1.055G 2-4 -0.055
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Publisher Resources

ISBN: 9781558607927